威望：118 ... A service court error has been made when a player:（当某球员发生以下情况时，视为发球区错误：） has served or received out of turn; or（不按顺序发球或接发球，或） has served or received from the wrong service court;（从错误的发球区发球或接发球。） ...
The Flex tracks your sleep quality as well, but the approach here differs from other Fitbit products: whereas the Fitbit One and Fitbit Zip have a key you can press to enter sleep mode, the Flex has no buttons at all, so your only recourse for logging sleep is to use the app or website.
She also said builders in Canada have some legal protections that they don't have in the U.S., such as legal recourse should a buyer who has put down a deposit opt to walk away.